[INFO] cloning repository https://github.com/MySachin2/rustws
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MySachin2/rustws" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMySachin2%2Frustws", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMySachin2%2Frustws'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0a1a496eabe6737533d6199260561cbec69e9eb1
[INFO] checking MySachin2/rustws against master#1ca8b71cff69b0c48e40ceb66d01b9f8d30b2492 for pr-118553-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMySachin2%2Frustws" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MySachin2/rustws on toolchain 1ca8b71cff69b0c48e40ceb66d01b9f8d30b2492
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ca8b71cff69b0c48e40ceb66d01b9f8d30b2492" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MySachin2/rustws
[INFO] finished tweaking git repo https://github.com/MySachin2/rustws
[INFO] tweaked toml for git repo https://github.com/MySachin2/rustws written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/MySachin2/rustws already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ca8b71cff69b0c48e40ceb66d01b9f8d30b2492" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking MySachin2/rustws against try#a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33 for pr-118553-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMySachin2%2Frustws" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MySachin2/rustws on toolchain a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MySachin2/rustws
[INFO] finished tweaking git repo https://github.com/MySachin2/rustws
[INFO] tweaked toml for git repo https://github.com/MySachin2/rustws written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/MySachin2/rustws already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ws v0.9.2
[INFO] [stderr]   Downloaded redis v0.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa708172754b3a813e3d79460d76880c88dc18cdf63bd449b842e8de7b093983
[INFO] running `Command { std: "docker" "start" "-a" "aa708172754b3a813e3d79460d76880c88dc18cdf63bd449b842e8de7b093983", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa708172754b3a813e3d79460d76880c88dc18cdf63bd449b842e8de7b093983", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa708172754b3a813e3d79460d76880c88dc18cdf63bd449b842e8de7b093983", kill_on_drop: false }`
[INFO] [stdout] aa708172754b3a813e3d79460d76880c88dc18cdf63bd449b842e8de7b093983
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+a1ab9307c2d2e67595eb3bb22fd707ccd1f71e33" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe6d5a22e473f3f5a92d99ea311f45a491fcf9a6fbe9c5f8ff8b454a7fbbaff2
[INFO] running `Command { std: "docker" "start" "-a" "fe6d5a22e473f3f5a92d99ea311f45a491fcf9a6fbe9c5f8ff8b454a7fbbaff2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]    Compiling redis v0.10.0
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]     Checking sha1_smol v1.0.0
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking sha1 v0.6.1
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.50/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "fe6d5a22e473f3f5a92d99ea311f45a491fcf9a6fbe9c5f8ff8b454a7fbbaff2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe6d5a22e473f3f5a92d99ea311f45a491fcf9a6fbe9c5f8ff8b454a7fbbaff2", kill_on_drop: false }`
[INFO] [stdout] fe6d5a22e473f3f5a92d99ea311f45a491fcf9a6fbe9c5f8ff8b454a7fbbaff2